#app {
  width: 100%;
  height: 100%;
  overflow: auto;
  overflow-x: hidden;
  position: relative;
}
#app .beijing {
  width: 106%;
}
#app .btn {
  position: absolute;
  width: 564px;
  height: 136px;
  top: 2370px;
  left: calc((100% - 564px) / 2);
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}
@keyframes Strong {
  0% {
    width: 564px;
    left: calc((100% - 564px) / 2);
  }
  100% {
    width: 680px;
    height: 150px;
    left: calc((100% - 680px) / 2);
  }
}
#app .btn:active {
  animation-name: Strong;
  /* 持续时间 */
  animation-duration: 1s;
}
#app .main {
  position: fixed;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 999;
}
#app .main .img-box {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background-color: #fff;
}
#app .main .img-box_delete {
  position: absolute;
  right: 10px;
  top: 10px;
}
#app .main .img-box .container {
  width: 100%;
  height: 100%;
}
#app .notShow {
  display: none;
}
